package thread;

import java.util.concurrent.atomic.AtomicInteger;

public class ThreadDemo34 {
    //不使用原生的int 二hi替换成AtomicInteger
//    private static int count = 0;
    private static AtomicInteger count = new AtomicInteger(0);
    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() ->{
            for (int i = 0; i < 50000; i++) {
//                count++;
                count.getAndIncrement();//这个从count++的三个指令变成了一个cas指令
                //++count
//                count.incrementAndGet();
                //count += n;
//                count.getAndAdd(n)
            }
        });
        Thread t2 = new Thread(() ->{
            for (int i = 0; i < 50000; i++) {
                count.getAndIncrement();
            }
        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println("count = " + count.get());//持有的整数值

    }
}
